Table 3 Results of the multivariable logistic regression of cesarean delivery
From: The effect of induction method in twin pregnancies: a secondary analysis for the twin birth study
Variables in the final model | Variables not in the final model | ||
|---|---|---|---|
Variable | p-value Odds ratio (95% CI) | Variable | p-valuea Odds ratio (95% CI) a |
Maternal age (years) | 0.001 | Method of induction | 0.61 |
<30 | 1 | PG | 0.88 (0.55, 1.4) |
≥30 | 2.2 (1.4, 3.6) | No PG | 1 |
Parity | <0.0001 | Gestational age at randomization | 0.73 |
0 | 1 | 320-336 weeks | 0.89 (0.47, 1.7) |
≥1 | 0.21 (0.13, 0.35) | 340-366 weeks | 1.1 (0.61, 2.0) |
370-386 weeks | 1 | ||
National perinatal mortality rate | <0.0001 | Chorionicity on ultrasound | 0.55 |
<10/1000 | 1 | Dichorionic | 0.70 (0.30, 1.7) |
≥10/1000 | 3.3 (2.0, 5.6) | Monochorionic | 0.92 (0.35, 2.4) |
Unknown | 1 | ||
Presentation of twin B at delivery | 0.0016 | ||
Cephalic | 0.46 (0.28, 0.74) | ||
Non-cephalic | 1 | ||